A Generalized Space–Time Multiple-Input Multiple-Output (MIMO) Channel Model

Xu, Hao; Chizhik, Dmitry; Huang, Haiyang; Valenzuela, R.A.

doi:10.1109/twc.2004.827736

Cited by 69 publications

(36 citation statements)

References 21 publications

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“…To characterize the transformation dyad in (3) for any of the scenarios, we assume the channel entries Gaussian and that the scatterers are independent and randomly change the plane wave impinging in direction to . Furthermore, we assume a separable model for the joint power angular spectrum (PAS) [13] and the angle between the field pattern in the transmitter/receiver and the electric field scattered noted as and , respectively.…”

Section: A Diversity Scenariosmentioning

confidence: 99%

Combination of the Three Types of Diversity to Design High-Capacity Compact MIMO Terminals

Pablo-Gonzalez

Sanchez-Fernandez

Rajo‐Iglesias

2014

Antennas Wirel. Propag. Lett.

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Abstract-Multiple-input-multiple-output (MIMO) schemes designed to increase channel capacity face strong limitations when a large number of antennas must be deployed in a terminal due to size constrains. This letter discusses how the different combinations of the three types of diversities-namely spatial, radiation pattern, and polarization diversity-can be used to get an improved capacity in compact terminals. The study compares realistic combinations that overcome the need for a large number of radiating elements in the user terminal.

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Section: A Diversity Scenariosmentioning

confidence: 99%

Combination of the Three Types of Diversity to Design High-Capacity Compact MIMO Terminals

Pablo-Gonzalez

Sanchez-Fernandez

Rajo‐Iglesias

2014

Antennas Wirel. Propag. Lett.

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“…The channel transfer function between receiver u and transmitter s at path n and time t is determined by the superposition of a large number of sinusoidal subpaths [35] as follows:…”

Section: F Generation Of Fast-fading Coefficientsmentioning

confidence: 99%

“…In [35], a hybrid model has been proposed to represent a general MIMO channel using a hybrid representation of the angular spectrum at the mobile and correlated fading at the base, once second-order statistics, such as power delay and angular spectra are specified. The current work represents the MIMO channel as a superposition of clustered constituents, with stochastic powers, angles of departure (AoD) and arrival (AoA), as well as times of arrival.…”

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confidence: 99%

A Wideband Spatial Channel Model for System-Wide Simulations

Calcev

Chizhik²,

Göransson

et al. 2007

IEEE Trans. Veh. Technol.

171

101

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A wideband space-time channel model is defined, which captures the multiple dependencies and variability in multicell system-wide operating environments. The model provides a unified treatment of spatial and temporal parameters, giving their statistical description and dependencies across a large geographical area for three outdoor environments pertinent to third-generation cellular system simulations. Parameter values are drawn from a broad base of recently published wideband and multiple-antenna measurements. A methodology is given to generate fast-fading coefficients between a base station and a mobile user based on the summation of directional plane waves derived from the statistics of the space-time parameters. Extensions to the baseline channel model, such as polarized antennas, are given to provide a greater variety of spatial environments. Despite its comprehensive nature, the model's implementation complexity is reasonable so it can be used in simulating large-scale systems. Output statistics and capabilities are used to illustrate the main characteristics of the model. IEEE Transactions on Vehicular TechnologyThis work may not be copied or reproduced in whole or in part for any commercial purpose. Permission to copy in whole or in part without payment of fee is granted for nonprofit educational and research purposes provided that all such whole or partial copies include the following: a notice that such copying is by permission of Mitsubishi Electric Research Laboratories, Inc.; an acknowledgment of the authors and individual contributions to the work; and all applicable portions of the copyright notice. Copying, reproduction, or republishing for any other purpose shall require a license with payment of fee to Mitsubishi Electric Research Laboratories, Inc. All rights reserved. Abstract-A wideband space-time channel model is defined, which captures the multiple dependencies and variability in multicell system-wide operating environments. The model provides a unified treatment of spatial and temporal parameters, giving their statistical description and dependencies across a large geographical area for three outdoor environments pertinent to thirdgeneration cellular system simulations. Parameter values are drawn from a broad base of recently published wideband and multiple-antenna measurements. A methodology is given to generate fast-fading coefficients between a base station and a mobile user based on the summation of directional plane waves derived from the statistics of the space-time parameters. Extensions to the baseline channel model, such as polarized antennas, are given to provide a greater variety of spatial environments. Despite its comprehensive nature, the model's implementation complexity is reasonable so it can be used in simulating large-scale systems. Output statistics and capacities are used to illustrate the main characteristics of the model.

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“…Gaussian entries, which is an idealistic assumption especially for indoor scenarios. More realistic MIMO channel models can be generally divided into three classes: ray-tracing, scattering, and correlation models [9]. In spite of providing good prediction of the channel behavior, ray-tracing and scattering methods suffer from substantial simulation time and complexity which become prohibitive issues in complex environments.…”

Section: Introductionmentioning

confidence: 99%

A New Link-Level Simulation Procedure of Wideband Mimo Radio Channel for Performance Evaluation of Indoor Wlans

Roozbahani¹,

Jedari²,

Shishegar³

2008

PIER

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Abstract-Inspired by the requirement of proper link simulation methods in performance analysis of communication systems, we present in this paper a recipe for channel implementation in simulation environments. Our focus here is the indoor applications of wireless local-area networks (WLANs). Specifically, we describe a procedure that beginning with statistical description of the channel impulse response leads to an efficient multi-input multi-output (MIMO) channel simulating method for arbitrary antenna configurations at both ends. A sample set of distributions for model parameters are also provided at the 5-GHz band, which is the operating frequency band of IEEE 802.11a, HIPERLAN/2, and the emerging IEEE 802.11n standards, and the corresponding software implementation of the simulator is addressed for public use.

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A Generalized Space–Time Multiple-Input Multiple-Output (MIMO) Channel Model

Cited by 69 publications

References 21 publications

Combination of the Three Types of Diversity to Design High-Capacity Compact MIMO Terminals

Combination of the Three Types of Diversity to Design High-Capacity Compact MIMO Terminals

A Wideband Spatial Channel Model for System-Wide Simulations

A New Link-Level Simulation Procedure of Wideband Mimo Radio Channel for Performance Evaluation of Indoor Wlans

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